J. Wallace was a mechanic that was hired by the Weyland Corporation to fix and repair vehicles aboard the USCSS Prometheus during the ship's voyage to LV-223.

When Janek noticed Fifield's monitor was outside the Prometheus' hangar door, a mechanic ordered Barnes to open the door. Barnes opened the door and the other mechanic went outside to inspect Fifield (who was infected by the black liquid found inside the Engineer Temple). The mechanic kicked Fifield's boot, but nothing happened. The mechanic then told Wallace to take a look at Fifield, but the mechanic was killed when Fifield smashed his helmet as Wallace watched in horror. Wallace fled and tried to get into the ATV NR6 in the hangar, but Fifield threw him off the platform and jumped on him, crushing his chest. Wallace was finally killed when Fifield smashed his face with his clenched hands.

To make this figure, I used a Four figure from Divergent, the head of Hicks from Aliens and the helmet of David 8. This custom was sculpted in 90% of the figure as my first technician. Regards.